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Summary of Significant Accounting Policies (Details - Stock purchases) - Common Stock [Member] - $ / shares | 6 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024
Share Repurchase Program [Line Items] |  |
Total stock purchases, shares | 526,652 | 1,297,713
Total stock purchases, average price | $ 9.76 | $ 8.61
Open Market Purchases [Member] |  |
Share Repurchase Program [Line Items] |  |
Total stock purchases, shares | 76,880 | 473,202
Total stock purchases, average price | $ 9.72 | $ 8.67
Shares Redeemed [Member] |  |
Share Repurchase Program [Line Items] |  |
Total stock purchases, shares | 449,772 | 824,511
Total stock purchases, average price | $ 9.76 | $ 8.57

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